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1. Effect of jasmonic acid on major terpenes and density of glandular trichomes in Lippia graveolens kunth (Verbenaceae)

Author:
Moreno-Rodríguez, Amanda; Santos-Castro, Rosario; Vázquez-Medrano, Josefina; Quintanar-Zúñiga, Rafael E.; García-García, Fernando A.; Hernández-Portilla, Luis B.; Flores-Ortiz, Cesar M.
Source:
Natural product research 2020 v.34 no.13 pp. 1942-1946
ISSN:
1478-6427
Subject:
thymol,   etc   ; Lippia graveolens; alpha-caryophyllene; jasmonic acid; monoterpenoids; phenotypic plasticity; phytochemicals; seeds; trichomes;     Show all 9 Subjects
Abstract:
... The effect of exogenous application of jasmonic acid (JA) on the concentration of main terpenes and density of glandular trichomes was investigated in the Mexican oregano, propagated from seeds from 3 localities. JA 1 mM was applied locally and to the whole plant. JA locally applied increased the number of trichomes, with a mean of 20 trichomes more with respect to the controls in plants from Teco ...
DOI:
10.1080/14786419.2019.1566721

2. Insight into the anti-aging mechanisms of natural phenolic antioxidants in natural rubber composites using a screening strategy based on molecular simulation

Author:
Lu, Ling; Luo, Kaiqiang; Yang, Wei; Zhang, Sidian; Wang, Wencai; Xu, Haiyan; Wu, Sizhu
Source:
RSC advances 2020 v.10 no.36 pp. 21318-21327
ISSN:
2046-2069
Subject:
thymol,   etc   ; alpha-tocopherol; antioxidants; epigallocatechin gallate; molecular dynamics; pollution; prediction; rubber; screening; toxicity testing; wastes;     Show all 11 Subjects
Abstract:
... The failure of materials upon aging has led to the accumulation of waste and environmental pollution. Adding antioxidants (AOs) to the composites is one of the most effective ways to retard aging. However, traditional synthetic AOs are always detrimental to the environment and human health. The selection of antioxidants from streams by experiments will also definitely cost a lot of time and money. ...
DOI:
10.1039/d0ra03425h

3. Structure–Odor Activity Studies on Derivatives of Aromatic and Oxygenated Monoterpenoids Synthesized by Modifying p-Cymene

Author:
Schreiner, Linda; Bauer, Johannes; Ortner, Eva; Buettner, Andrea
Source:
Journal of natural products 2020 v.83 no.4 pp. 834-842
ISSN:
1520-6025
Subject:
thymol,   etc   ; air; carvacrol; foods; monoterpenoids; odor compounds; odors; oregano; p-cymene; quinones; smell; thyme;     Show all 12 Subjects
Abstract:
... Thymoquinone was recently reported as having a unique pencil-like odor and being the impact compound for the cedar-like and cedar wood-based product smell such as pencils. The compounds thymol and carvacrol are structurally related odorants commonly found in plants and foods such as thyme and oregano, also having a significant contribution to their overall aroma. However, a systematic elucidation ...
DOI:
10.1021/acs.jnatprod.9b00339

4. The effect of gelatin and thymol‐loaded nanostructured lipid carrier on physicochemical, rheological, and sensory properties of sesame paste/date syrup blends as a snack bar

Author:
Baqeri, Forod; Nejatian, Mohammad; Abbaszadeh, Sepideh; Taghdir, Maryam
Source:
Journal of texture studies 2020 v.51 no.3 pp. 501-510
ISSN:
0022-4901
Subject:
thymol,   etc   ; adhesion; butylated hydroxytoluene; cohesion; encapsulation; functional foods; gelatin; hardness; lipids; odors; oxidative stability; sensory evaluation; syrups; taste; texture;     Show all 15 Subjects
Abstract:
... The development of a novel snack bar based on sesame paste (SP) and date syrup (DS) was investigated. The aim of this study was to evaluation the effects of SP/DS ratio and encapsulated thymol (thymol‐loaded nanostructured lipid carrier [TNLC]) on physicochemical, textural, rheological, and sensorial properties of snack bars. The effect of butylated hydroxytoluene (BHT), thymol, and TNLC showed th ...
DOI:
10.1111/jtxs.12511

5. Thymol and carvacrol in nanoliposomes: Characterization and a comparison with free counterparts against planktonic and glass-adhered Salmonella

Author:
Heckler, Caroline; Marques Maders Silva, Caroline; Ayres Cacciatore, Fabiola; Daroit, Daniel Joner; da Silva Malheiros, Patrícia
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2020 v.127 pp. 109382
ISSN:
0023-6438
Subject:
thymol,   etc   ; Salmonella; anti-infective agents; bacterial adhesion; carvacrol; disinfection; encapsulation; food processing; foods; glass; minimum inhibitory concentration; plankton; zeta potential;     Show all 13 Subjects
Abstract:
... Nanoliposome-encapsulated and free thymol, carvacrol, and thymol/carvacrol (1:1) were assessed as antimicrobials against a Salmonella pool. Liposome-encapsulated thymol (TL), carvacrol (CL) and thymol/carvacrol (TCL) presented 230–270 nm diameter, satisfactory polydispersity (0.24–0.31), zeta potential of approximately −30 mV and high encapsulation efficiencies (~99%), remaining stable during 28 d ...
DOI:
10.1016/j.lwt.2020.109382

6. Optimization of production parameters for fabrication of thymol-loaded chitosan nanoparticles

Author:
Çakır, M. Ali; Icyer, N. Cihat; Tornuk, Fatih
Source:
International journal of biological macromolecules 2020 v.151 pp. 230-238
ISSN:
0141-8130
Subject:
thymol,   etc   ; Thymus vulgaris; chitosan; encapsulation; essential oils; gelation; nanocapsules; nanoparticles; particle size; polysorbates; prediction; temperature; thyme; zeta potential;     Show all 14 Subjects
Abstract:
... Thymol is the major antimicrobial and bioactive constituent found in thyme (Thymus vulgaris) essential oil. In this study, it was aimed to determine the parameters for fabrication of thymol loaded chitosan nanoparticles with optimum encapsulation efficiency, zeta potential, and particle size properties using a two-stage emulsion-ionic gelation approach. For this purpose, temperature (25–45 °C) and ...
DOI:
10.1016/j.ijbiomac.2020.02.096

7. Effect of thymol and Pickering stabilization on in-vitro digestion fate and oxidation stability of plant-derived flaxseed oil emulsions

Author:
Nikbakht Nasrabadi, Maryam; Sedaghat Doost, Ali; Goli, Sayed Amir Hossein; Van der Meeren, Paul
Source:
Food chemistry 2020 v.311 pp. 125872
ISSN:
0308-8146
Subject:
thymol,   etc   ; bioavailability; emulsions; functional foods; in vitro digestion; linseed; linseed oil; lipid metabolism; oxidation; oxidative stability; polysaccharides; polysorbates;     Show all 12 Subjects
Abstract:
... The aim of this study was to evaluate the effect of Pickering stabilization by biopolymer-based particles (bioparticles), consisting of flaxseed protein and polysaccharides, and of the addition of thymol to the oil phase on the oxidation stability, and digestion fate of flaxseed oil (FO) emulsions, compared to bulk FO and conventional emulsions stabilized by polysorbate 80 (PS80). Applying Pickeri ...
DOI:
10.1016/j.foodchem.2019.125872

8. Mold resistance of bamboo after laccase-catalyzed attachment of thymol and proposed mechanism of attachment

Author:
Wang, Jie; Wang, Hui; Ye, Zelin; Chizaram, Enyinwa Patience; Jiang, Jun; Liu, Tingsong; Sun, Fangli; Zhang, Shaoyong
Source:
RSC advances 2020 v.10 no.13 pp. 7764-7770
ISSN:
2046-2069
Subject:
thymol,   etc   ; Fourier transform infrared spectroscopy; antifungal properties; bamboos; catalytic activity; laccase; leaching; lignin; mass spectrometry; nuclear magnetic resonance spectroscopy; thermogravimetry;     Show all 11 Subjects
Abstract:
... Laccase-catalyzed attachment of functional molecules onto the surface of bamboo represents an alternative, green approach to improve performance. Although treatment of bamboo with thymol improved resistance to mold, using laccase to fix the same concentration of thymol to the surface of the bamboo could increase both the antifungal activity and resistance to leaching. Leaching of thymol was reduce ...
DOI:
10.1039/d0ra00315h

9. In vitro acaricidal activity of essential oil and alcoholic extract of Trachyspermum ammi against Dermanyssus gallinae

Author:
Baran, Abbas Imani; Jahanghiri, Farzad; Hajipour, Nasser; Sparagano, Olivier Andre Ettore; Norouzi, Roghayeh; Moharramnejad, Sajjad
Source:
Veterinary parasitology 2020 v.278 pp. 109030
ISSN:
0304-4017
Subject:
thymol,   etc   ; Dermanyssus gallinae; Trachyspermum ammi; acaricidal properties; bioassays; cypermethrin; dose response; essential oils; ethanol; mites; mortality; spraying; statistical analysis;     Show all 13 Subjects
Abstract:
... This study aimed to assess in vitro acaricidal activity of essential oil (EO) and alcoholic extracts (AE) of Ajowan against D. gallinae. Using contact and spraying bioassays, different doses of EO and AE were tested. Cypermethrin and thymol (positive controls), and ethanol and distilled water (negative controls) were also tested. The results indicated that effects were method and dose dependent. S ...
DOI:
10.1016/j.vetpar.2020.109030

10. Thymol provokes burst of action potentials in neurons of snail Caucasotachea atrolabiata

Author:
Zolfaghari, Zahra; Vatanparast, Jafar
Source:
Comparative biochemistry and physiology 2020 v.228 pp. 108654
ISSN:
1532-0456
Subject:
thymol,   etc   ; action potentials; antioxidant activity; calcium; food industry; monoterpenoids; neurons; potassium; potassium channels; snails; sodium; tetraethylammonium compounds;     Show all 12 Subjects
Abstract:
... Thymol, a phenolic monoterpene, is well known for its antimicrobial, antifungal and antioxidant properties. In spite of wide use in oral care products, pharmaceutical and cosmetic preparation and in food industry, the effects of thymol on the neuronal activity and intrinsic properties have not been well studied. We studied the effects of thymol on the spontaneous activity and action potential prop ...
DOI:
10.1016/j.cbpc.2019.108654

11. Combination of thymol and eugenol for the control of Rhipicephalus sanguineus sensu lato: Evaluation of synergism on immature stages and formulation development

Author:
Coelho, Letícia; de Paula, Luiza Gabriella Ferreira; Alves, Susy das Graças Alecrim; Sampaio, Aparecida Lorrany Nunes; Bezerra, Giovana Pereira; Vilela, Fernanda Maria Pinto; Matos, Renata da Silva; Zeringóta, Viviane; Borges, Lígia Miranda Ferreira; Monteiro, Caio
Source:
Veterinary parasitology 2020 v.277 pp. 108989
ISSN:
0304-4017
Subject:
thymol,   etc   ; Rhipicephalus sanguineus; acaricidal properties; active ingredients; cost benefit analysis; cost estimates; eugenol; immatures; larvae; mortality; nymphs; polymers; synergism; ticks;     Show all 14 Subjects
Abstract:
... The aim of this study was to investigate whether the combination of thymol with eugenol has a synergistic effect on the immature life stages of Rhipicephalus sanguineus sensu lato (s.l.), to evaluate the cost-benefit ratio of using these compounds in combination, and to develop a formulation combining thymol with eugenol with activity on immature stages of R. sanguineus s.l. To evaluate synergism, ...
DOI:
10.1016/j.vetpar.2019.108989

12. Quantifying both ammonium and proline in wines and beer by using a PDMS composite for sensoring

Author:
Prieto-Blanco, María Carmen; Jornet-Martinez, Neus; Verdú-Andrés, Jorge; Molíns-Legua, Carmen; Campíns-Falcó, Pilar
Source:
Talanta 2019 v.198 pp. 371-376
ISSN:
0039-9140
Subject:
thymol,   etc   ; ammonium; beers; cost effectiveness; detection limit; nitroprusside; proline; wines;     Show all 8 Subjects
Abstract:
... Two of the reagents involved in the Berthelot's reaction, thymol and nitroprusside, were embedded in a PDMS composite in order to apply this assay to determine ammonium and proline, in wine and beers. Safety, portability, rapidity, cost-effectiveness and simplicity of the assay were improved. For the proline determination, a modified Berthelot's reaction, which included a ring cleavage of proline, ...
DOI:
10.1016/j.talanta.2019.02.001

13. Antifungal activity of phenolic monoterpenes and structure-related compounds against plant pathogenic fungi

Author:
Wang, Kaibo; Jiang, Shanshan; Pu, Te; Fan, Liming; Su, Fawu; Ye, Min
Source:
Natural product research 2019 v.33 no.10 pp. 1423-1430
ISSN:
1478-6427
Subject:
thymol,   etc   ; antifungal properties; carvacrol; fungicides; monoterpenoids; mycelium; plant pathogenic fungi;     Show all 7 Subjects
Abstract:
... The aim of this work is to explore the possibility of using the phenolic monoterpenes (PMs) as leading compounds with antifungal activity against plant disease. The in vitro antifungal activities of carvacrol and thymol against seven kinds of plant pathogenic fungi were evaluated on mycelium growth rate method, and the results showed that carvacrol and thymol exhibited broad spectrum antifungal ac ...
DOI:
10.1080/14786419.2017.1419232

14. Screening of key flavonoids and monoterpenoids for xanthine oxidase inhibitory activity-oriented quality control of Chrysanthemum morifolium Ramat. ‘Boju’ based on spectrum-effect relationship coupled with UPLC-TOF-MS and HS-SPME-GC/MS

Author:
Peng, An; Lin, Lianzhu; Zhao, Mouming
Source:
Food research international 2020 v.137 pp. 109448
ISSN:
0963-9969
Subject:
thymol,   etc   ; Chrysanthemum morifolium; alpha-terpineol; apigenin; enzyme inhibition; functional foods; gas chromatography-mass spectrometry; luteolin; markets; monoterpenoids; quality control; screening; tea; xanthine oxidase;     Show all 14 Subjects
Abstract:
... This study aimed at obtaining precise quality control standards to efficiently screen Chrysanthemum morifolium Ramat. ‘Boju’ with strong xanthine oxidase (XO) inhibitory activity for developing C. morifolium ‘Boju’ extract based-hypouricemic functional food. The results indicated significant differences in volatile and phenolic profiles and XO inhibitory (XOI) activities of 31 batches of C. morifo ...
DOI:
10.1016/j.foodres.2020.109448

15. Assessment of different antimicrobials to inhibit the growth of Zygosaccharomyces rouxii cocktail in concentrated apple juice

Author:
Wang, Huxuan; Sun, Hongmin
Source:
Food microbiology 2020 v.91 pp. 103549
ISSN:
0740-0020
Subject:
thymol,   etc   ; Zygosaccharomyces rouxii; anti-infective agents; antimicrobial properties; apple juice; biopreservatives; brix; carvacrol; equations; essential oils; grape must; honey; juice industry; mathematical models; spoilage; yeasts;     Show all 16 Subjects
Abstract:
... Zygosaccharomyces rouxii represents the main spoilage cause of concentrated apple juice, leading to waste of products or recalls. Essential oils components derived from plants have been found to present antimicrobial activities against various microbes. However, few work has been reported about their antimicrobial activities against Z. rouxii in concentrated apple juice. In this work, reparameteri ...
DOI:
10.1016/j.fm.2020.103549

16. Insecticide activity of botanical compounds against Spodoptera frugiperda and selectivity to the predatory bug Podisus nigrispinus

Author:
Lima, Ana P.S.; Santana, Emile D.R.; Santos, Ane C.C.; Silva, Jefferson E.; Ribeiro, Genésio T.; Pinheiro, Aline M.; Santos, Ítala T.B.F.; Blank, Arie F.; Araújo, Ana Paula A.; Bacci, Leandro
Source:
Crop protection 2020 v.136 pp. 105230
ISSN:
0261-2194
Subject:
thymol,   etc   ; Lippia sidoides; Podisus nigrispinus; Spodoptera frugiperda; behavior change; deltamethrin; essential oils; insect control; insect larvae; insect pests; insecticidal properties; mortality; natural enemies; nymphs; predatory insects; toxicity;     Show all 16 Subjects
Abstract:
... Pest control based exclusively on the use of organosynthetic insecticides can cause several problems including the reduction of populations of natural enemies. Thus, the use of selective insecticides is essential for efficient pest control. In this study, we evaluated the lethal effects of the essential oil of Lippia sidoides and its major compound thymol on the fall armyworm, Spodoptera frugiperd ...
DOI:
10.1016/j.cropro.2020.105230

17. Chemical composition of Lippia origanoides Kunt. and Ocimum gratissimum L. essential oils stored at −20 °C

Author:
Lisboa, Cristiane F.; Melo, Evandro C.; Demuner, Antônio J.; da Silva, Luís C.; Carneiro, Antônio P.S.; Coelho, Ana Paula F.
Source:
Industrial crops and products 2020 v.151 pp. 112485
ISSN:
0926-6690
Subject:
thymol,   etc   ; Lippia origanoides; Ocimum gratissimum; chemical composition; chromatography; essential oils; eugenol; freezers; frozen storage; hydrodistillation; leaf extracts; leaves; storage temperature; storage time;     Show all 14 Subjects
Abstract:
... The objective of this work was to evaluate the chemical stability and quality of Lippia origanoides Kunt. Essential Oil (EO) samples compounds. and Ocimum gratissimum L. during storage. Two separate experiments with EO samples storage were performed, one involving the species L. origanoides Kunt. and the other with O. gratissimum L. For both species, a completely randomized design was used, in a s ...
DOI:
10.1016/j.indcrop.2020.112485

18. Effects of glycerol and thymol on physical, mechanical, and thermal properties of corn starch films

Author:
Nordin, Norhazirah; Othman, Siti Hajar; Rashid, Suraya Abdul; Basha, Roseliza Kadir
Source:
Food hydrocolloids 2020 v.106 pp. 105884
ISSN:
0268-005X
Subject:
thymol,   etc   ; Fourier transform infrared spectroscopy; corn starch; films (materials); glycerol; hydrocolloids; hydrogen bonding; solubility; temperature; tensile strength; thermal degradation; thermal stability; water content;     Show all 13 Subjects
Abstract:
... This study explores the preparation of corn starch (CS) films incorporated with glycerol, thymol, and combination of glycerol and thymol via solution casting technique. The resulting films were characterized in terms of structural changes, physical, optical, mechanical, and thermal properties. Results show that the presence of both glycerol and thymol in CS film increased the film thickness while ...
DOI:
10.1016/j.foodhyd.2020.105884

19. Supramolecular solvents formation in aqueous solutions containing primary amine and monoterpenoid compound: Liquid phase microextraction of sulfonamides

Author:
Bogdanova, Polina; Pochivalov, Aleksei; Vakh, Christina; Bulatov, Andrey
Source:
Talanta 2020 v.216 pp. 120992
ISSN:
0039-9140
Subject:
thymol,   etc   ; amines; aqueous solutions; blood serum; calibration; chemical species; detection limit; droplets; graphs; humans; isotropy; liquid-phase microextraction; monoterpenoids; phenol; separation; solvents; sulfamethazine; sulfamethoxazole; sulfapyridine; surfactants;     Show all 20 Subjects
Abstract:
... A phenomenon of supramolecular solvents formation in aqueous solutions containing primary amine and monoterpenoid compound is presented for the first time. A novel supramolecular solvent-based liquid phase microextraction was developed. In an aqueous phase primary amine formed isotropic solution due to formation of amphiphile supramolecular assembly. The phase separation was achieved by a coacerva ...
DOI:
10.1016/j.talanta.2020.120992

20. Effects of Thymol Supplementation on Goat Rumen Fermentation and Rumen Microbiota In Vitro

Author:
Yu, Jiangkun; Cai, Liyuan; Zhang, Jiacai; Yang, Ao; Wang, Yanan; Zhang, Lei; Guan, Le Luo; Qi, Desheng
Source:
Microorganisms 2020 v.8 no.8
ISSN:
2076-2607
Subject:
thymol,   etc   ; Archaea; Protozoa; ammonium nitrogen; bacteria; digestibility; fermentation; methane production; organic matter; propionic acid; rumen fermentation; rumen fluids; rumen microorganisms; volatile fatty acids;     Show all 14 Subjects
Abstract:
... This study was performed to explore the predominant responses of rumen microbiota with thymol supplementation as well as effective dose of thymol on rumen fermentation. Thymol at different concentrations, i.e., 0, 100 mg/L, 200 mg/L, and 400 mg/L (four groups × five replications) was applied for 24 h of fermentation in a rumen fluid incubation system. Illumina MiSeq sequencing was applied to inves ...
DOI:
10.3390/microorganisms8081160